Doorcheck



L. A. BORNE April 21, 1925.

DOORGHECK Fiied oct. 25, 1924 Patented Apr., 21, i925.,

UNITED STATES PATENT OFFICE.

nooRcHEcK.

Application led'Optober 2,5, 1924. -Serial No. 745,936.

T0 all whom t may concern:

Beit known that l, Louis A. Bonne, a citizen of the United' States,residing at Milwaukee, inthe county ofMilwaukee a-nd State of Wisconsin,have invented certain new and useful Improvements in Doorchecks, ofwhichthe following'is a specific tion, 4reference Vbeing had to 'theaccompanying` drawings.

yThis invention relates to certain improvements in door checks and it isan object of the vinvention to provide a novel and iinproved device ofthis genera-l character adapted to be carried by the door proper andwhich operates effectively to hold the door open at any desired angle;

lt isv also an object of the invention to provide a novel and improveddevice of this general character adapted to be `carried by the doorproper and which embodies the plunger normally urged in a direction toengagethe floor or `other surface over which the door swings togetherwith releasable means for holding said plunger in. a raised orinoperative position.

An additional object of the invention is to provide a novel and improveddevice of this general character adapted to be carried by the doorproper and' which embodies a plunger normally urged for movement in avdirection for Contact with a floor or other surface over which the .doormay travel together with means for maintaining said plunger in a raisedyor inoperative position, said means having associated therewith amechanism operating under impact for releasing` the plunger when in. itsinoperative,

or raised position.,

The invention consists in the details of construction and in thecombinationV and" arrangement of the several parts. of my improved doorcheck whereby certain impor tant advantages are attained Vand the devicerendered simpler, less expensive and otherwise more convenient kandadvantageous for use, as will behereinafter more fully set forth. y

The novel features of Vmy invention will hereinafter be definitelyclaimed.

In order that my invention may be the better understood, I will nowproceed to describe the same with reference to the accompanyingdrawings, wherein z- Figure l is a fragmentary view in elevation`illustrating a door check constructed inaccordance with an embodiment ofmy mvention and in applied vposition with the plunger in a raised orinoperative position;

Figure 2 is a sectional view taken substantially on the line 2-2 ofFigure l;

Figure 3 is a View similar to Figure 2 but .showing the plunger in itslowered or working position.

As disclosed in the accompanying draw ings, D' denotes the lower outerportion of a door adapted to be supported in a conventional manner forswinging movement relative to the door openino'. Secured to the outerface of said portionof the door D is a casing C which .supports `forsliding movement in a vertical direction the plunger l. The lowerportion of the plunger' is freely disposed through the lower end wall lof the casing C and is provided at its free eX- tremity with a foot orpad 2 preferably yof rubber adapted to have direct contact with thefloor or other surface over which the door may travel. By having a. footor pad. 2 of rubber or kindred material it is assured that the requisiteaction of the plunger P upon said floor or kindred surface will not maror yotherwise injure the same.

rThe plunger P is constantly urged down wardly by an expansible member 3intei`- posed between the upper end portion lof the plunger P and the`top end wall Il of the casing C. This member 3 as herein disclosed,constitutes a coil spring possessing the requisite tension. One endportion of said member or spring 3 surrounds the upper reduced endYportion 5 of the plunger l) while the opposite end portion surrounds theinwardly directed lug` or bore G depending from the top end wall 4. Y

The portion of the plunger P within the casing C is guided for endwisemovement in substantially a fixed path of travel b v a guideV plate 7through which the plunger'l.3 is slidably disposed. Y

Transversely bridging the casing C and supported by the side walls 8thereof'is a pin 9 which serves as a pivotal supportfer a de- UJIpending latch 10 the bill 10 of said latch, when in vone position,engaging from below the upper beveled wall 11 of an opening 12 directedthrough tlieplunger, said bill 10 engaging said wall 11 when the plungerP is in its raised or inoperative position and operates to maintain suchposition.

To the lower portion of the latch 10 is operatively engaged a rod 14which is directed through the opening 11 and through the bottom plate 15of the casing C and through the door D and terminates beyond theopposite face of said door. This outer end portion of the rod 141carries an enlargement or head 16 which is snugly engaged within theoutstanding barrel or sleeve 17 secured to the outer face of the door Dand interposed between said head or enlargement 16 and the base orbottom of the sleeve or barrel 17 is an expansible member 18 hereindisclosed as a coil spring surrounding the rod 14. This spring 17 is ofsuiiicient tension to constantly urge the rod 14e outwardly and tomaintain the latch 10 in position to properly engage the upper wall 11of the opening 12 and also to maintain the head or enlargement 16slightly projected beyond the outer end of the sleeve or barrel 17.

lilith the plunger P in its raised or inop- .i erative position it willbe readily understood that when the door D is swung into its full Iopenposition the extended portion of the head or enlargement 16 will havecontact with the adjacent wall or kindred abutment and by the resultantimpact swing the latch lO into open position and thereby permit thekplunger P to be forced downwardly by the expansible member or spring 3into proper contact with the licor to effectively hold or check the doorD iii such full open position.

The plunger is adapted to be released for en.

gageinent with the ioor when the door is open at any desired angle,other than full open position, and in order toefiiect the requisiterelease of the latch 10 the upper or pivoted end portion thereof isprovided with an upwardly inclined ai'in or tail piece 19 so that bycontact therewith from below by a foot or the like the latch 1() will bereadily disengaged from the plunger P when in its raised or inoperativeposition.

Extending through the lower portion ofa side wall 8 of the casing C andpivotally supported by a pin 20 is a lever 21- the inserted end portionof which being operative-` ly engaged, as at 22, with the plunger Pwhile the outer end portion 23 of said lever constitutes a pedal so thatby exerting downward pressure upon said pedal 23 the plunger P will bereadily raised into its inoperative position and to an extent to permitthe f desired locking engagement therewith of the latch 10.

From the foregoing description it is thought to be obvious that a doorcheck constructed in accordance with my invention is particularly welladapted for use by reason of the convenience and facility with which itmay be assembled and operated, and it will also be obvious that myinvention is susceptible of some change and modification withoutdeparting from the principles and spirit thereof and for this reason Ido not wish to be understood'as limiting myself to the precisearrangement and formation of the several parts herein shown in carryingout my invention in practice except as hereinafter claimed.

I claim zy 1. In combination with avdoor, a floor engaging plungercarried by one side thereof, means for urging the plunger into contactwith the floor, a latch for holding the plunger in a raised orinoperative position, and means engaged with the latch and extendingbeyond the opposite side of the door for releasing tlie latch from theplunger;

2. In combination with a door, a floor engaging plunger carried by oneside thereof, means for urging the plunger into contact with the licor,a latch for holding the plunger in a raised or inoperative position,means engaged with the latch and extending beyond the opposite side ofthe door for re? leasing the latch from i the plunger, and meanscoacting with said last named means for constantly urging the latchtoward the plunger to hold the saine in holding engage-- ment with theplunger.

8. In combination with a door, a ioor en- 100 gaging plunger carried byone side thereof, means for urging the plunger into contact with thefloor, a latch for `holding the plunger in a raised or inoperativeposition, and means engaged with the latch and extending 105 beyond theopposite side of the door for releasing the latch from the plunger, Saidmeans operating under impact to move th latch into inoperative.position.4

fl. In con'ibination with a door, a liooren- 110 gaging plunger carriedby one side thereof, means for urging the plunger into contact with thefloor, a rlatch for holding' the plunger in a raised or inoperativeposition, means engaged with the latch and extending be- 115 yond theopposite side of the door for releasing tlie latch from the plunger, andmeans carried by the latch and at the saine side of the door for movingthe latch into release position.

5. In combination with a doei', a floor engaging plunger carried by oneside thereof, means for urging the plunger into contact with the floor,a latch for holding the plunger in a raised or inoperative position,means 125 engaged with the latch and extending beyond the opposite sideof the door for releasing the latch from the plunger, and means forraising the latch.

6. In combination with a door, a floor en- 130 being provided with nrecess in which the latch engages to hold the plunger in its inoperative position.

In testimony whereof I hereunto affix my signature.

LOUIS A. BORNE.

